Asayansi apeza kuti ma meteorite atatu ali ndi DNA ndi mnzake wa RNA. Kagawo kakang'ono ka zigawo zomangira izi zapezeka kale mu meteorites, koma zotsalazo sizinalipo mwachidwi ku miyala yam'mlengalenga - mpaka pano.
Malinga ndi ofufuzawo, kutulukira kwatsopanoku kumagwirizana ndi lingaliro lakuti zaka mabiliyoni anayi zapitazo, bombardment of meteorites mwina anapereka zinthu mankhwala zofunika kukankha-kuyamba mapangidwe moyo woyamba pa Dziko Lapansi.
Komabe, si aliyense amene amakhulupirira kuti zigawo zonse za DNA zomwe zangopezedwa kumene zinachokera kuthambo; m'malo, ena mwina anathera mu meteorites pambuyo miyala inafika Padziko Lapansi, malinga ndi Michael Callahan, analytical chemist, astrobiologist, ndi pulofesa wothandizira pa Boise State University amene sanali nawo phunziro. "Maphunziro owonjezera akufunika" kuti apewe izi, Callahan adauza Sayansi Yamoyo mu imelo.
Poganiza kuti mankhwala onsewa adachokera kumlengalenga, kagawo kakang'ono kamene kamamanga gulu lamagulu otchedwa - pyrimidines adawonekera "mochepa kwambiri" mu meteorites, anawonjezera. Kupeza uku kukuwonetsa kuti mamolekyu oyamba padziko lapansi sanatulukire chifukwa cha kuchuluka kwa zigawo za DNA kuchokera mumlengalenga koma chifukwa cha momwe ma geochemical amadziwira padziko lapansi, adawonjezera.
Komabe, pakadali pano, "ndizovuta kunena" kuti ndi ma DNA otani omwe amamanga meteorite akadafunika kukhala nawo kuti athandizire kuti zamoyo zikhale pa Dziko Lapansi, malinga ndi Jim Cleaves, katswiri wa geochemist komanso pulezidenti wa International Society for the the Earth. Phunziro la Origin of Life yemwe sanachite nawo phunziroli. Nkhaniyi ikuyang'aniridwabe.
